Railway-tie.



G. 0. BENTGN.

RAILWAY TIE,

APPLIOATION mum 313F129, 1910.

Patented July 23, 1912.

SHEET 1 2 SHEETS- CARMI O. BENTON, OF GRAINFIELD, KANSAS.

RAILVAY-TIE.

Specification of Letters Patent.

Patented July 23, 1912.

Application filed September 9, 1910. Serial No. 581,126.

I To a l whom it may 007100111.

Be it known that I, CanMrO. BENTON, a citizen of the United States,residing at Grainticld, in the county of Gove. State of Kansas, haveinvented certain new and useful Improvements in Railway-Ties; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same his invention relates to railwayties and has for an object to provide a tie that will be sufiicientlyelastic to yield under the weight of passing trains, and will have novelmeans for limiting the yielding movement of the tie so as to preventinjury to the tie under severe conditions of service.

In the accompanying drawings, forming part of this specification :Figurel is a side elevation of a. railway tie constructed in accordance withmy invention. Fig. :2 is a cross sectional view taken on the line 2--2,Fig. 1. Fig. 3 is a top plan view of the tic. Fig. 4 is a longitudinalsectional view taken on the line M, Fig. Fig. 5 is a cross sectionalview taken on the line 55, Fig. l.

The railway tie comprises a pair of superposed oppositely turned channelmembers 10 and 11 the upper member being adapted to telescope into thelower member. The lower or base member is designed to be embedded in theballast of the road bed and the upper or head member supports thetratlic rails on its web.

Arranged adjacent the opposite ends of the head member are pairs ofspaced angular clamps 12. these clamps being: arranged upon oppositesides of the trallic rail and having their free end portions :nhipted tobe engaged over the rail ban; flange and having their body portionsprovided with openings .13 which register with threaded openings 14formed in the head men'lber. these openings receiving the oppositelythreaded ends ot' a stud 15, a nut 16 being threaded on that end of thestud which projects through the opening 13 in the clamp and retainingthe clamp in position.

Seated within the base member are still helical springs l7, tin-sosprings being disposed to underlie the rails clamped by the rail clamps.The terminal convolutions of each spring bear against the opposing facesof the base and head members and normally hold the head member inextended position,

that is to say. in its outermost position relatively to the base member.washer l5. is disposed within the bore oi the spring and bears with itsouter edge against the lowermost convolution of the spring.

A bolt 19 is engaged through the central opening in the washer andthrough registering openings 20 formed in thcbasc and head members, thehead of the bolt being; countersunk in the head member o iening as shownand bearing against the bottom face of the rail base flange. Thethreaded end of the bolt projects through the base member and. isequipped with a nut 2t which may be advanced or retracted upon the boltso as to vary the tension of the heli cal spring. The function ot thewasher above described is to prevent lateral displacement of the helicalspring, due to vilnation of pas lug trains. it is clear that theproiccting tllli. ol' the bolt and nut being disposcd bel w the basenumber will gouge out a hollow in the road bed as the I head member isdepressed against the pres sure of the spring by a passing train, it being understlmd that where the tie is to be used in tunnels and the likewhere the road bed is of solid rock that suitable openings will bedrilled in the rock to permit of the ielding of the tie.

To limit the yielding movement of the head member so as to preventmutilation of the tie during heavy trallic conditions, the open ends ofthe base member are closed by caps 22, these caps tittint. snuglyagainst; the end edges oi the head member and cont'orn'iingr in outlineto the outline of the latter. Arranged upon lhc inner face ol earlcap isa strip 3 3. thi strip bring sccurcd by bolts. rivets, or similarconnectors to the cap or may be cast integral therewith if desired. Thisstrip is arranged a slight distance be ow the upper edge of the cap andforms a stop against which the head member impinges under a normallyheavy traffic. conditions. it is evident that when the head member is inciuragcmcnl with thes stops carried by the clitl that tbc head memberwill be positively held against tun thcr yielding so that. no parts oithe tie will be injured.

For securing the caps in position, angular braces 24 are provided, apair of these braces being arranged adjacent the upper edge of each capand a pair being arranged adjacent the lower edge of each cap. ()no legof each brace is bolted as shown at 23 to l t the cap and the oppositeleg is bolted a shown at J6 to the adjacent; side wal of l the basemember. The caps are tu' movably secured in position so as: r permit ofthe interior of the tie l lffljj ex posed when repairs are necessary.

In order that the tendency of the Mad member to yield abnormally underthe weight of passing trains and thereby weaken the springs 17 may beminimized, the outer surfaces of the head member l], and also theopposing inner surfaces oi" tlfu base member 10, are faced and planed toa perfect lit the object of this being to cause the tie to bepractically an airtight bonr partlnent, capable of withstanding a greatamount of internal and external pressure. The object of this air-tightcompartment Within the tie is to form an airtight eushion for the headmember, distributing the of What telescoping movement does take placeevenly throughoutthe tie.

Under heavy tratlic conditions the compartment within the tie may bepartially filled with an inexpensive oil or other noncongealingsubstance so that the proper rcsisting power of the tie compression maybe maintained.

b a t A nwi uel l s laimed i llY'J railway tie including a chanwnber andclnmnel base member, in-labor being turned. oppositely to an?telescoping into said base member, rail supporting means on the Web ofsaid head member, spaced helical springs inter posed between bothmembers and underlying said. rail supporting means, bolts engagedthrough the bores of said springs and terminally engaging said head andasc members, loose washers on said bolts supported upon said base memberand spac ng the lower ends of said springs from sr d bolts, caps closingthe ends of said base member and bearing against the end edges of saidhead member. and transverse cleats on the inner faces of said capsadapted to engage the underneath face of the head member web and limittelescoping movement of said head member into said base member.

In testimony whereof, I afiix my signature, in presence of twowitnesses.

CARMI O. BENTON.

Vitnwscs OSCAR S. TOY,

/ ERIC- I CUMMINGS.

